---
title: "handleFailureInFunction:file:lineNumber:description:"
framework: Foundation
role: symbol
role_heading: Instance Method
platforms: [iOS 2.0+, iPadOS 2.0+, Mac Catalyst 13.0+, macOS 10.0+, tvOS 9.0+, visionOS 1.0+, watchOS 2.0+]
path: "foundation/nsassertionhandler/handlefailureinfunction:file:linenumber:description:"
---

# handleFailureInFunction:file:lineNumber:description:

## Declaration

```occ
- (void) handleFailureInFunction:(NSString *) functionName file:(NSString *) fileName lineNumber:(NSInteger) line description:(NSString *) format;
```

## See Also

### Handling Assertion Failures

- [current](foundation/nsassertionhandler/current.md)
- [handleFailureInMethod:object:file:lineNumber:description:](foundation/nsassertionhandler/handlefailureinmethod:object:file:linenumber:description:.md)